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Miller CST 280 - SECTION 5 - INSTALLATION; Connecting 3-Phase Input Power (Continued)

Miller CST 280
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OM-258 035 Page 25
5-10. Connecting 3-Phase Input Power (Continued)
! Installation must meet all National
and Local Codes − have only qualified
persons make this installation.
! Disconnect and lockout/tagout input
power before connecting input
conductors from unit. Follow
established procedures regarding
the installation and removal of
lockout/tagout devices.
! Always connect green or
green/yellow conductor to supply
grounding terminal first, and never to
a line terminal.
See rating label on unit and check input volt-
age available at site.
1 Input Power Cord.
2 Disconnect Device (switch shown in
the OFF position)
3 Green Or Green/Yellow Grounding
Conductor
4 Disconnect Device Grounding Terminal
5 Input Conductors (L1, L2 And L3)
6 Disconnect Device Line Terminals
Connect green or green/yellow grounding
conductor to disconnect device grounding
terminal first.
Connect input conductors L1, L2, and L3 to
disconnect device line terminals.
7 Over-Current Protection
Select type and size of over-current protec-
tion using Section 5-8 (fused disconnect
switch shown).
Close and secure door on disconnect device.
Follow established lockout/tagout proced-
ures to put unit in service.
Input2 2012−05
Notes
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.

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